What is the media's most important role in a democracy?

The media's most important role in a democracy is "Informing voters about candidates, policies, and other matters on the public agenda."

Media plays a crucial role in shaping a healthy democracy.

Media is crucial in any democracy in several ways:

Media makes the citizens aware of what is going on in terms of governance, and politics.

Media propagates the policies and programmes of the government.

As a result.  people create opinion based on the information provided by media.

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jim crow laws were enacted in northern states.